What kind of power does DC primarily operate?

Direct Current (DC) primarily operates pumps and motors because these components are designed to function efficiently with a consistent flow of electric charge in one direction. This characteristic is particularly essential for devices like motors, which depend on a stable current to create rotational movement, and pumps, which utilize the energy provided by DC power to move fluids effectively.

While lighting systems, electrical heating elements, and in-flight entertainment systems can also use DC power, they are not the primary applications. Lighting systems often utilize alternating current (AC) for efficiency over distances, electrical heating typically needs specific voltage and current characteristics that can be managed by various power types, and in-flight entertainment systems may employ both AC and DC depending on their design and requirements. This distinction underscores the suitability of DC for powering motors and pumps, making it essential in many mechanical and industrial applications.